Starter Motor Mercury Mariner 40 50 60 HP 4-Stroke 2001-On 50-859377T 12V 9T
5901n
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Starter Motor 50-859377T
For Mercury / Mariner 40-60HP 4-Stroke Outboards
Is your Mercury outboard struggling to crank or making a grinding noise? This premium quality aftermarket starter motor is a direct bolt-on replacement designed specifically for Mercury and Mariner 40HP to 60HP 4-stroke engines (996cc / 57 cu in). Engineered to withstand the harsh marine environment, it features sealed housings and high-torque performance to ensure reliable starting in all conditions.
Key Features
- ✔ Marine Grade: Sealed bearings and housing for moisture resistance.
- ✔ Direct Fit: Exact replacement for original 50-859377T series.
- ✔ High Torque: Optimized for the 996cc 4-stroke powerhead.
- ✔ Precision Gear: 9-tooth drive for smooth flywheel engagement.
Technical Specs
| Voltage: | 12V |
| Rotation: | Counter-Clockwise (CCW) |
| Teeth: | 9 Teeth |
| Type: | PMDD |
| Gear OD: | 29.4mm / 1.157" |
| Mounting: | 8.1mm Unthreaded |
Compatibility / Fitment Guide
| Make | Model/HP | Year Range |
|---|---|---|
| Mercury / Mariner | 40HP 4-Stroke (4-Cyl / 996cc) | 2001 - 2016+ |
| Mercury / Mariner | 50HP 4-Stroke (4-Cyl / 996cc) | 2001 - 2016+ |
| Mercury / Mariner | 60HP 4-Stroke (4-Cyl / 996cc) | 2001 - 2016+ |
| Mercury SeaPro | 40HP / 60HP EFI | Up to 2018 |
OEM Cross Reference
| Mercury Marine: | 50-859377T, 50-884044T, 50-888161T, 50-893888T, 50-884045T |
| Sierra Marine: | 18-6435 |
| ARCO Marine: | 5360 |
| Lester / J&N: | 5901 / 410-21095 |
Questions & Answers
Is this a genuine original part?
This is a premium quality aftermarket replacement part, manufactured to meet or exceed original equipment (OE) standards for fitment and performance in marine environments.
How do I know if it is compatible?
We recommend checking the SKU/MPN and Cross Reference list provided above. If your original part number starts with 50-859377 or 50-884044, this is the correct replacement.
Does this fit both EFI and Carbureted engines?
Yes, this starter is compatible with both the EFI (Electronic Fuel Injection) and older Carbureted 4-cylinder 4-stroke 40-60HP Mercury models from the specified years.
Note: Please verify your original part number against the references above or consult your engine serial number before purchasing. Sold by 4boats.co.uk.
For the products under £150 the shipping is £6.99.
Free delivery for most items over £150.
